As soon as a simple queue is created even in disabled state device goes into a boot loop and needs to be factory reset to recover.
Tested this on the shipped 7.0Beta6 and 7.1Beta2 and 7.1Beta3. is it possible to downgrade to version 6?
No v.6 for Chateau.
People reported similar issues: viewtopic.php?f=1&t=164923
Best of all make a request to Support, they will require additional information from you to make this bug go away faster.